Winding mechanism of high-speed film blowing machine

Abstract

The utility model discloses a winding mechanism of a high-speed film blowing machine, which relates to the technical field of film blowing machines and comprises a base, a motor is arranged on the surface of the base through a support, a rotating shaft is fixedly arranged at one end of an output shaft of the motor, a winding roller is movably sleeved on the surface of the rotating shaft, and the winding roller is arranged on the base. And a tensioning device for tensioning the film is arranged on the surface of the base. The thin film tensioning device has the advantages that the thin film is tensioned through the tensioning device, so that the thin film is in a tensioned state and does not wrinkle, and the winding quality is improved, so that the problems that the thin film tensioning device does not have a tensioning function, the central position of a winding shaft is not changed during winding work, the interior of a material roll is tightened and the exterior of the material roll is loosened during high-speed winding, and the winding quality is poor are solved. And the problem that the film is too loose to cause wrinkles of the plastic film, and later processing is affected is solved, and the beneficial effects that the film can be limited, and the film is prevented from deviating in the rolling process are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a winding mechanism of a high-speed film blowing machine. Background Art

[0002] High-speed film blowing machine heats and melts plastic particles and then blows them into film. Film blowing machine is mainly used to produce film. The raw materials are heated into a molten state and extruded through an extrusion mechanism, and compressed air is used to blow out film bubbles to make film, which is finally rolled into a tube through a winding mechanism. There are many types of film blowing machines, including PE, POF, PVC and so on.

[0003] Existing high-speed film blowing machines generally do not have a tensioning function. The center position of the reel remains unchanged during rewinding. As a result, the inside of the roll will be tighter and the outside will be looser during high-speed rewinding. Excessive looseness of the film may cause wrinkles in the plastic film, affecting subsequent processing. Utility Model Content

[0004] The utility model provides a winding mechanism of a high-speed film blowing machine, which has the advantage of being able to tension the film through a tensioning device so that the film is in a tensioned state without wrinkles, thereby improving the winding quality, and solving the problem of not having a tensioning function and the center position of the winding shaft remaining unchanged during the winding operation. In this way, during high-speed winding, the inside of the material roll will be relatively tight while the outside will be relatively loose, and excessive looseness of the film may cause wrinkles in the plastic film, thereby affecting the later processing.

[0005] In order to achieve the purpose of tensioning the film through a tensioning device, making the film in a tensioned state without wrinkles, and improving the winding quality, the utility model provides the following technical solutions: a winding mechanism of a high-speed film blowing machine, including a base, a motor is arranged on the surface of the base through a bracket, a rotating shaft is fixedly arranged at one end of the motor output shaft, a winding roller is movably sleeved on the surface of the rotating shaft, and a tensioning device for tensioning the film is arranged on the surface of the base.

[0006] As a preferred technical solution of the utility model, the tensioning device includes a sleeve, a connecting piece, a first tensioning roller, a tensioning spring and a second tensioning roller, one end of the sleeve is fixedly arranged on the surface of the base, the sleeve is movably sleeved on the surface of the connecting piece, the first tensioning roller is sleeved on the surface of the connecting piece, the tensioning spring is sleeved on the surface of the connecting piece, one end of the tensioning spring is fixedly connected to the surface of the connecting piece, the other end of the tensioning spring is fixedly connected to the other end of the sleeve, and the second tensioning roller is arranged on the surface of the base through a placement frame.

[0007] As a preferred technical solution of the utility model, a support frame is fixedly arranged on the surface of the connecting member, and a limit block is movably arranged on the surface of the support frame. There are two limit blocks, and both of the limit blocks are movably connected to the first tensioning roller.

[0008] As a preferred technical solution of the utility model, a lead screw is provided on the surface of the support frame via a through-hole thread, the lead screw is connected to the surface of the limit block via a connecting shaft, and the number of the lead screw matches that of the limit block.

[0009] As a preferred technical solution of the utility model, a cylinder is fixedly provided on the inner side wall of the support frame, an electric slide rail is fixedly provided on the output end of the cylinder, and a cutting knife is provided on the surface of the electric slide rail.

[0010] As a preferred technical solution of the utility model, a guide rod is arranged on the top of the electric slide rail, the guide rod movably passes through the support frame, and a limiting ring is fixedly arranged at one end of the guide rod.

[0011] As a preferred technical solution of the utility model, a sliding groove is provided on the surface of the rotating shaft, a fixing bolt is provided on the inner side wall of the sliding groove, a fixing block is movably sleeved on the surface of the fixing bolt, the fixing block is movably connected to the winding roller, a nut is threadedly provided on the surface of the fixing bolt, and the nut is movably connected to the fixing block.

[0012] Compared with the prior art, the utility model provides a winding mechanism for a high-speed film blowing machine, which has the following beneficial effects:

[0013] 1. The winding mechanism of the high-speed film blowing machine is provided with a tensioning device, and one end of the film is brought into contact with the winding roller through the tensioning device. The tensioning device contacts the film to tension the film, and the motor is started. The motor output shaft drives the winding roller to rotate through the rotating shaft, and the winding roller winds the film. The film is tensioned by the tensioning device, so that the film will be in a tensioned state without wrinkles, and the winding quality is improved. The problem of not having a tensioning function and the center position of the winding shaft remains unchanged during the winding work is solved. In this way, when high-speed winding is performed, the inside of the material roll will be relatively tight and the outside will be relatively loose. The excessive relaxation of the film may cause wrinkles in the plastic film, affecting the problem of later processing.

[0014] 2. The winding mechanism of the high-speed film blowing machine is provided with a limit block. By twisting the lead screw, the lead screw rotates on the surface of the limit block through the connecting shaft. The lead screw moves through the internal thread of the through hole, driving the limit block to move along the surface of the first tensioning roller, thereby achieving the advantages of limiting the film and preventing the film from shifting during winding, and limiting the film of different widths, solving the problem that the film may shift during winding, thereby affecting the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified view of the structure at center;

[0017] Figure 3 It is a partial structural schematic diagram of the tensioning device of the utility model.

[0018] In the figure: 1. base; 2. motor; 3. rotating shaft; 4. winding roller; 5. sleeve; 6. connecting piece; 7. first tensioning roller; 8. tensioning spring; 9. second tensioning roller; 10. support frame; 11. limit block; 12. lead screw; 13. cylinder; 14. electric slide rail; 15. cutting knife; 16. guide rod; 17. slide groove; 18. fixing bolt; 19. fixing block; 20. nut; 21. limit ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 The utility model discloses a winding mechanism of a high-speed film blowing machine, including a base 1, a motor 2 is arranged on the surface of the base 1 through a bracket, a rotating shaft 3 is fixedly arranged at one end of the output shaft of the motor 2, a winding roller 4 is movably sleeved on the surface of the rotating shaft 3, and a tensioning device for tensioning the film is arranged on the surface of the base 1.

[0021] Specifically, the tensioning device includes a sleeve 5, a connecting piece 6, a first tensioning roller 7, a tensioning spring 8 and a second tensioning roller 9. One end of the sleeve 5 is fixedly arranged on the surface of the base 1, the sleeve 5 is movably sleeved on the surface of the connecting piece 6, the first tensioning roller 7 is sleeved on the surface of the connecting piece 6, the tensioning spring 8 is sleeved on the surface of the connecting piece 6, one end of the tensioning spring 8 is fixedly connected to the surface of the connecting piece 6, the other end of the tensioning spring 8 is fixedly connected to the other end of the sleeve 5, and the second tensioning roller 9 is arranged on the surface of the base 1 through a placement frame.

[0022] In this embodiment, one end of the film is first passed through the bottom of the second tensioning roller 9, and then contacts the surface of the winding roller 4 through the top of the first tensioning roller 7. The height of the first tensioning roller 7 is higher than the winding roller 4 and the second tensioning roller 9, so that the film will press the first tensioning roller 7. The first tensioning roller 7 moves along the inner wall of the sleeve 5 through the connecting piece 6, and at the same time compresses the tensioning spring 8. The first tensioning roller 7 will be squeezed with the film under the elastic force of the tensioning spring 8 to tension the film.

[0023] Specifically, a support frame 10 is fixedly provided on the surface of the connecting member 6 , and a limit block 11 is movably provided on the surface of the support frame 10 . There are two limit blocks 11 , and both limit blocks 11 are movably connected to the first tensioning roller 7 .

[0024] In this embodiment, the two limiting blocks 11 are in contact with two sides of the film respectively, so as to limit the film and prevent the film from deflecting when being rolled up.

[0025] Specifically, a lead screw 12 is provided on the surface of the support frame 10 through a through-hole thread, and the lead screw 12 is connected to the surface of the limit block 11 through a connecting shaft, and the number of the lead screw 12 and the limit block 11 are adapted.

[0026] In this embodiment, by twisting the lead screw 12, an arc groove is opened at the bottom of the limit block 11, and the limit block 11 is adapted to the first tensioning roller 7 through the arc groove, so that the limit block 11 can be guided. The rotation of the lead screw 12 will rotate on the surface of the limit block 11 through the connecting shaft. The lead screw 12 moves through the internal thread of the through hole, driving the limit block 11 to move along the surface of the first tensioning roller 7. The limit block 11 is adjusted by the lead screw 12, so that films of different widths can be limited.

[0027] Specifically, a cylinder 13 is fixedly provided on the inner side wall of the support frame 10 , an electric slide rail 14 is fixedly provided on the output end of the cylinder 13 , and a cutting knife 15 is provided on the surface of the electric slide rail 14 .

[0028] In this embodiment, the cylinder 13 is started, and the output end of the cylinder 13 drives the electric slide rail 14 to descend, and the electric slide rail 14 drives the cutting knife 15 to move. After the cutting knife 15 contacts the film, the cylinder 13 is closed, and the electric slide rail 14 is started. The cutting knife 15 is connected to the electric slide rail 14 through the slider, and the electric slide rail 14 drives the slider to drive the cutting knife 15 to move. The cutting knife 15 moves along the film on the surface of the first tensioning roller 7 to automatically cut the film.

[0029] Specifically, a guide rod 16 is disposed on the top of the electric slide rail 14 . The guide rod 16 movably passes through the support frame 10 . A limit ring 21 is fixedly disposed at one end of the guide rod 16 .

[0030] In the present embodiment, when the cutting knife 15 contacts the film, the limiting ring 21 contacts the top of the support frame 10 to prevent the cutting knife 15 from contacting the first tensioning roller 7 through the film. The cylinder 13 does not stop in time, causing the cutting knife 15 to hit the first tensioning roller 7, which may easily cause damage to the cutting knife 15. The limiting ring 21 contacts the support frame 10 while the cutting knife 15 contacts the film, so as to limit the cutting knife 15, and the guide rod 16 can guide the electric slide rail 14.

[0031] Specifically, a slide groove 17 is provided on the surface of the rotating shaft 3, and a fixing bolt 18 is provided on the inner wall of the slide groove 17. A fixing block 19 is movably sleeved on the surface of the fixing bolt 18, and the fixing block 19 is movably connected to the winding roller 4. A nut 20 is threadedly provided on the surface of the fixing bolt 18, and the nut 20 is movably connected to the fixing block 19.

[0032] In this embodiment, the nut 20 is turned to disengage the nut 20 from the fixing block 19, the fixing bolt 18 is taken out from the slide groove 17, and then the wound winding roller 4 is removed from the surface of the winding roller 4, and a new winding roller 4 is replaced, and the fixing bolt 18 is installed in the slide groove 17, so that the fixing block 19 contacts with the winding roller 4, and the nut 20 is turned so that the nut 20 contacts the fixing block 19 tightly, so that the fixing bolt 18 contacts the inner bottom of the slide groove 17 tightly, and the winding roller 4 is limited. At the same time, winding rollers 4 of different sizes can be limited.

[0033] The working principle and use process of the utility model are as follows: a film blowing machine is mainly used to produce film. The raw material is heated into a molten state and extruded through an extrusion mechanism, and film bubbles are blown out by compressed air to obtain a film, which is finally rolled into a tube through a winding mechanism. When the film is rolled up, one end of the film first passes through the bottom of the second tensioning roller 9, and then contacts the surface of the winding roller 4 through the top of the first tensioning roller 7. The height of the first tensioning roller 7 is higher than the winding roller 4 and the second tensioning roller 9, so that the film will press the first tensioning roller 7, and the first tensioning roller 7 moves along the inner wall of the sleeve 5 through the connecting piece 6, and at the same time presses the tensioning spring 8 to be compressed. The first tensioning roller 7 will be squeezed with the film under the elastic force of the tensioning spring 8 to tension the film, and the two limit blocks 11 are respectively in contact with the two sides of the film. , the film can be limited to prevent it from deviating during winding. An internal thread is provided on the inner wall of the through hole, and the lead screw 12 is threadedly connected to the inner wall of the through hole. By twisting the lead screw 12, an arc groove is provided at the bottom of the limit block 11, and the limit block 11 is adapted to the first tensioning roller 7 through the arc groove, so that the limit block 11 can be guided. The rotation of the lead screw 12 will rotate on the surface of the limit block 11 through the connecting shaft, and the lead screw 12 moves through the internal thread of the through hole, driving the limit block 11 to move along the surface of the first tensioning roller 7. The limit block 11 is adjusted by the lead screw 12, and films of different widths can be limited. The motor 2 is started, and the output shaft of the motor 2 drives the winding roller 4 to rotate through the rotating shaft 3, and the winding roller 4 winds up the film. As the winding roller 4 is wound As the thickness of the rolled film roll increases, the tensioning spring 8 will slowly drive the first tensioning roller 7 to reset and tension the film. After the winding is completed, the motor 2 is turned off and the cylinder 13 is started. The output end of the cylinder 13 drives the electric slide rail 14 to descend, and the electric slide rail 14 drives the cutting knife 15 to move. The electric slide rail 14 drives the guide rod 16 to move along the inner wall of the support frame 10. When the cutting knife 15 contacts the film, the limit ring 21 contacts the top of the support frame 10 to prevent the cutting knife 15 from contacting the first tensioning roller 7 through the film. When the cylinder 13 does not stop in time, the cutting knife 15 hits the first tensioning roller 7, which is easy to cause damage to the cutting knife 15. When the cutting knife 15 contacts the film, the limit ring 21 contacts the support frame 10 to limit the cutting knife 15. The guide rod 16 can guide the electric slide 14. After the cutting knife 15 contacts the film, the cylinder 13 is closed and the electric slide 14 is started. The cutting knife 15 is connected to the electric slide 14 through the slider. The electric slide 14 drives the slider to drive the cutting knife 15 to move. The cutting knife 15 moves along the film on the surface of the first tensioning roller 7 to automatically cut the film. When it is necessary to remove the winding roller 4 after winding, the nut 20 is screwed to disengage the nut 20 from the fixing block 19, and the fixing bolt 18 is taken out from the slide groove 17. Then, the wound winding roller 4 is removed from the rotating surface, and a new winding roller 4 is replaced. The fixing bolt 18 is installed in the slide groove 17 to make the fixing block 19 contact with the winding roller 4, and the nut 20 is screwed so that the nut 20 is in close contact with the fixing block 19.Thus, the fixing bolt 18 is in close contact with the inner bottom of the slide slot 17, limiting the position of the winding roller 4, and winding rollers 4 of different sizes can be installed.

[0034] In summary, the winding mechanism of the high-speed film blowing machine achieves the advantage of tensioning the film through the tensioning device by setting the tensioning device, so that the film will be in a tensioned state and will not wrinkle, thereby improving the winding quality, and solving the problem of not having a tensioning function. The center position of the winding shaft remains unchanged during the winding operation. In this way, when high-speed winding is performed, the inside of the material roll will be relatively tight and the outside will be relatively loose. Excessive looseness of the film may cause wrinkles in the plastic film, affecting the problem of later processing.

[0035] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding mechanism of a high-speed film blowing machine, comprising a base (1), Features: A motor (2) is arranged on the surface of the base (1) via a bracket, a rotating shaft (3) is fixedly arranged at one end of the output shaft of the motor (2), a winding roller (4) is movably sleeved on the surface of the rotating shaft (3), and a tensioning device for tensioning a film is arranged on the surface of the base (1); The tensioning device comprises a sleeve (5), a connecting piece (6), a first tensioning roller (7), a tensioning spring (8) and a second tensioning roller (9); one end of the sleeve (5) is fixedly arranged on the surface of the base (1); the sleeve (5) is movably sleeved on the surface of the connecting piece (6); the first tensioning roller (7) is sleeved on the surface of the connecting piece (6); the tensioning spring (8) is sleeved on the surface of the connecting piece (6); one end of the tensioning spring (8) is fixedly connected to the surface of the connecting piece (6); the other end of the tensioning spring (8) is fixedly connected to the other end of the sleeve (5); and the second tensioning roller (9) is arranged on the surface of the base (1) via a placement frame.

2. A winding mechanism for a high-speed film blowing machine according to claim 1, Features: A support frame (10) is fixedly arranged on the surface of the connecting member (6), and a limit block (11) is movably arranged on the surface of the support frame (10). Two limit blocks (11) are provided, and both limit blocks (11) are movably connected to the first tensioning roller (7).

3. The winding mechanism of the high-speed film blowing machine according to claim 2, Features: A lead screw (12) is provided on the surface of the support frame (10) via a through-hole thread, and the lead screw (12) is connected to the surface of the limit block (11) via a connecting shaft, and the number of the lead screw (12) and the limit block (11) are matched.

4. The winding mechanism of the high-speed film blowing machine according to claim 2, Features: A cylinder (13) is fixedly arranged on the inner side wall of the support frame (10), an electric slide rail (14) is fixedly arranged on the output end of the cylinder (13), and a cutting knife (15) is arranged on the surface of the electric slide rail (14).

5. The winding mechanism of the high-speed film blowing machine according to claim 4, Features: A guide rod (16) is arranged on the top of the electric slide rail (14); the guide rod (16) movably passes through the support frame (10); and a limit ring (21) is fixedly arranged on one end of the guide rod (16).

6. The winding mechanism of the high-speed film blowing machine according to claim 1, Features: The surface of the rotating shaft (3) is provided with a slide groove (17), the inner side wall of the slide groove (17) is provided with a fixing bolt (18), the surface of the fixing bolt (18) is movably sleeved with a fixing block (19), the fixing block (19) is movably connected to the winding roller (4), the surface of the fixing bolt (18) is threadedly provided with a nut (20), and the nut (20) is movably connected to the fixing block (19).

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